Steering railway bogie
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United States of America Patent
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-
Oct 2, 2012
Grant Date -
Dec 30, 2010
app pub date -
Feb 21, 2008
filing date -
Feb 22, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A bogie for a railway vehicle includes a frame, a plurality of wheelsets, and steering linkages linking the wheelsets to maintain steering alignment. The bogie has a wheelset body linkage pivotally connecting the steering linkages with the bogie body so as to position the body relative to the wheelsets, and two alignment rams to position the body relative to the frame. The bogie also has sensors for monitoring yaw angle and yaw velocity. The sensor input is processed to estimate track curvature and determine the train speed and yaw velocity of the vehicle body. The processor actuates the alignment rams to adjust the position of the body relative to the frame in response to the track curvature and current frame positions to minimize wheel contact creepage and maximize bogie stability.
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